The value of farmsand rural real estate for sale in Clinton County, Pennsylvania, recently on Land.com was nearly $6 million. This represents 1,000 acres of farms and rural real estate for sale in Clinton County. Clinton County ranks 65th in the Keystone State for the total acreage of land currently advertised for sale. Of all locations in Clinton County with land and rural real estate for sale, Mill Hall had the most land for sale. From an economic perspective, manufacturing and related services are the main sectors in Clinton County. Clinton County is Pennsylvania's 17th biggest county (896 square miles). It's located in the Great Lakes & Wilds Pennsylvania region of the state.